Question

A gas made up of homonuclear diatomic molecules escapes through a pinhole 0.268 times as fast as H2 gas. Write the chemical formula of the gas

Answer 1

$0.268=\sqrt{\frac {2} {M}}$

$0.5177=\frac {2} {M}$

$M=3.864=4$

Chemical formula of the gas;He